chr14-77279774-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_013382.7(POMT2):​c.1891+49C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0569 in 1,567,636 control chromosomes in the GnomAD database, including 3,034 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.042 ( 208 hom., cov: 32)
Exomes 𝑓: 0.059 ( 2826 hom. )

Consequence

POMT2
NM_013382.7 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.50
Variant links:
Genes affected
POMT2 (HGNC:19743): (protein O-mannosyltransferase 2) The protein encoded by this gene is an O-mannosyltransferase that requires interaction with the product of the POMT1 gene for enzymatic function. The encoded protein is found in the membrane of the endoplasmic reticulum. Defects in this gene are a cause of Walker-Warburg syndrome (WWS).[provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 14-77279774-G-A is Benign according to our data. Variant chr14-77279774-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 260298.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0631 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POMT2NM_013382.7 linkuse as main transcriptc.1891+49C>T intron_variant ENST00000261534.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POMT2ENST00000261534.9 linkuse as main transcriptc.1891+49C>T intron_variant 1 NM_013382.7 P1Q9UKY4-1

Frequencies

GnomAD3 genomes
AF:
0.0418
AC:
6361
AN:
152066
Hom.:
208
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0115
Gnomad AMI
AF:
0.190
Gnomad AMR
AF:
0.0354
Gnomad ASJ
AF:
0.0311
Gnomad EAS
AF:
0.000968
Gnomad SAS
AF:
0.00849
Gnomad FIN
AF:
0.0501
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.0647
Gnomad OTH
AF:
0.0402
GnomAD3 exomes
AF:
0.0414
AC:
8002
AN:
193232
Hom.:
230
AF XY:
0.0410
AC XY:
4299
AN XY:
104872
show subpopulations
Gnomad AFR exome
AF:
0.0104
Gnomad AMR exome
AF:
0.0268
Gnomad ASJ exome
AF:
0.0279
Gnomad EAS exome
AF:
0.000138
Gnomad SAS exome
AF:
0.0102
Gnomad FIN exome
AF:
0.0465
Gnomad NFE exome
AF:
0.0684
Gnomad OTH exome
AF:
0.0436
GnomAD4 exome
AF:
0.0585
AC:
82813
AN:
1415452
Hom.:
2826
Cov.:
30
AF XY:
0.0571
AC XY:
40141
AN XY:
702542
show subpopulations
Gnomad4 AFR exome
AF:
0.00913
Gnomad4 AMR exome
AF:
0.0286
Gnomad4 ASJ exome
AF:
0.0267
Gnomad4 EAS exome
AF:
0.000211
Gnomad4 SAS exome
AF:
0.0110
Gnomad4 FIN exome
AF:
0.0432
Gnomad4 NFE exome
AF:
0.0690
Gnomad4 OTH exome
AF:
0.0462
GnomAD4 genome
AF:
0.0418
AC:
6361
AN:
152184
Hom.:
208
Cov.:
32
AF XY:
0.0412
AC XY:
3063
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.0115
Gnomad4 AMR
AF:
0.0354
Gnomad4 ASJ
AF:
0.0311
Gnomad4 EAS
AF:
0.000970
Gnomad4 SAS
AF:
0.00850
Gnomad4 FIN
AF:
0.0501
Gnomad4 NFE
AF:
0.0647
Gnomad4 OTH
AF:
0.0398
Alfa
AF:
0.0462
Hom.:
39
Bravo
AF:
0.0402
Asia WGS
AF:
0.00606
AC:
22
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 01, 2017- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 19, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
5.4
DANN
Benign
0.88
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs61990292; hg19: chr14-77746117; API